From 099392048cd443349c50310f7fdc96070e40f4e7 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sat, 29 Aug 2015 19:11:21 -0700 Subject: [PATCH] SUNRPC: Prevent SYN+SYNACK+RST storms Add a shutdown() call before we release the socket in order to ensure the reset is sent before we try to reconnect. Signed-off-by: Trond Myklebust --- net/sunrpc/xprtsock.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 214ca9dfb14e..7be90bc1a7c2 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -822,6 +822,8 @@ static void xs_reset_transport(struct sock_xprt *transport) if (atomic_read(&transport->xprt.swapper)) sk_clear_memalloc(sk); + kernel_sock_shutdown(sock, SHUT_RDWR); + write_lock_bh(&sk->sk_callback_lock); transport->inet = NULL; transport->sock = NULL; -- 2.20.1